The scenario grafts a fictional Hitchcock-redolent suspense thriller to the reality of the school’s existence. “Midnight” opens with the disappearance of an instructor at the school, under sinister circumstances. Enter Izzard as Thomas Miller, come to replace him. Like his predecessor, Miller is a British spy really sent to gather intelligence on the school. While the activities of the students, their German instructor Ilse (Carla Juri) and their British headmistress (Judi Dench) seem on the up-and-up, pedagogy-wise, the environment nevertheless looks ripe for espionage. And when Miller witnesses the student body’s enthusiastic response to a speech by Adolf Hitler on the wireless, he figures the suspicions of his superiors are correct.